#wrapper {
  width: 100%;
  height: 100%;
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  z-index: 2000;
}
#wrapper .topbar {
  height: 50px;
  background: #333435;
  -webkit-app-region: drag;
  padding: 0 10px;
}
#wrapper .topbar .btn {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  float: right;
  margin: 15px 5px;
  cursor: pointer;
  color: rgba(255, 255, 255, 0.5);
  -webkit-app-region: no-drag;
  text-align: center;
  line-height: 20px;
}
#wrapper .topbar .btn i {
  font-size: 20px;
  font-weight: 600;
  position: relative;
  top: -1px;
}
#wrapper .topbar .btn.close:hover {
  color: red;
}
#wrapper .topbar .btn.tomax:hover,
#wrapper .topbar .btn.tomin:hover {
  color: #fff;
}
#wrapper .topbar .btn.tomax i {
  font-size: 12px;
}
#wrapper .content {
  flex-grow: 1;
  height: calc(50%);
  display: flex;
  align-items: stretch;
}
#wrapper .content .left {
  flex-basis: 280px;
  width: 280px;
  display: flex;
  align-items: stretch;
}
#wrapper .content .left .btn {
  background: rgba(51, 52, 53, 0.7);
  flex-basis: 50px;
  width: 50px;
  display: flex;
  justify-content: center;
  flex-direction: column;
}
#wrapper .content .left .btn .item {
  font-size: 30px;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  text-align: center;
  line-height: 40px;
  background: red;
  margin: 10px 5px;
  font-weight: 600;
}
#wrapper .content .left .list {
  width: 230px;
  display: flex;
  height: 100%;
  flex-direction: column;
  user-select: none;
  background: #edeae8;
}
#wrapper .content .cont {
  flex-grow: 1;
  background: pink;
}
#wrapper .content .right {
  flex-basis: 249px;
  background: #fff;
  border-left: 1px solid #edeae8;
}
